WO2014202026A1 - 虚拟网络映射保护方法、系统及计算机存储介质 - Google Patents

虚拟网络映射保护方法、系统及计算机存储介质 Download PDF

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Publication number
WO2014202026A1
WO2014202026A1 PCT/CN2014/080416 CN2014080416W WO2014202026A1 WO 2014202026 A1 WO2014202026 A1 WO 2014202026A1 CN 2014080416 W CN2014080416 W CN 2014080416W WO 2014202026 A1 WO2014202026 A1 WO 2014202026A1
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Prior art keywords
network
protection
sub
working
mapping
Prior art date
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PCT/CN2014/080416
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English (en)
French (fr)
Chinese (zh)
Inventor
王大江
王振宇
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to ES14813827.4T priority Critical patent/ES2665433T3/es
Priority to JP2016520265A priority patent/JP6117996B2/ja
Priority to EP14813827.4A priority patent/EP3013005B1/en
Priority to RU2015155788A priority patent/RU2637419C2/ru
Priority to US14/899,062 priority patent/US10411949B2/en
Priority to KR1020167000382A priority patent/KR101859302B1/ko
Publication of WO2014202026A1 publication Critical patent/WO2014202026A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/40—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks using virtualisation of network functions or resources, e.g. SDN or NFV entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]

Definitions

  • the present invention relates to the field of networks, and in particular, to a virtual network mapping protection method, system, and computer storage medium. Background technique
  • SDN Software Defined Network
  • SDN can efficiently separate network data stream processing from the logic and rules that control data flow, and enable operators and enterprises to control and manage their own data, thus enabling the implementation of different rules and The ability to route, including determining which types of data are local and which types of data are being processed remotely.
  • SDN enables organizations to fine-tune and control access to networks and resources, allowing users to resolve specific issues that affect the network. Users can manage their work more quickly, more flexibly, and more easily through a single portal.
  • FIG. 1 is a schematic diagram of an SDN architecture in the prior art; as shown in FIG. 1 , an SDN architecture mainly includes: an application layer (Application Layer), a network virtual layer (Network Virtualization Layer), The Controller Layer and the Device Layer have four levels.
  • the application layer enables the user to define a network model by writing a control program according to his/her own needs; the user can initiate operations on the service connection (including establishing, deleting, modifying, querying, etc.) on the network model defined by the user. request;
  • the virtual layer can organize and analyze all abstract network models defined by the user, and finally form a global network view;
  • the controller layer can establish a mapping relationship between the global network view and the physical device network, and implement intelligent control of the service connection in the global network view according to the service request sent by the user, and the service connection configuration finally formed is opened.
  • the OpenFlow protocol or the Path Computation Element Protocol (PCEP) extended protocol is sent to the OpenFlow entry on the corresponding device node;
  • each device node performs a service scheduling function of the node according to its own OpenFlow entry record.
  • the network model defined by the user itself can be regarded as a service provided by the SDN technology for the user. It can be configured and migrated according to the user's needs, and is not restricted by the physical location; and the user can be informed how the network operates to better meet the application. Requirements, such as the bandwidth of the service, the latency requirement, the impact of billing on the route, and so on.
  • the controller layer passes the "global network view and physical device network mapping” function, and finally completes the user-defined network “drive,” the normal operation of the physical device network.
  • mapping relationship between the global network view and the physical layer network that are integrated by the user-defined network is unique.
  • physical network equipment nodes, links and other faults may occur, which may cause the interruption of this mapping relationship and affect the normal operation of the user-defined network.
  • the usual practice is to rely on the protection mechanism inside the physical device network to achieve network recovery.
  • the disadvantages of this protection mechanism are: Unable to cope with the randomness of internal network faults.
  • complex physical equipment networks including stars, mesh networks, ring networks, etc.
  • operators in terms of operating costs, operators usually only pass some of the nodes and links in the network.
  • a device network that recovers from local nodes and links in the network and recovers after a fault occurs. Although the mapping relationship between the global network view and the device network can be restored, the original solution relationship cannot be satisfied. Summary of the invention
  • the embodiments of the present invention provide a virtual network mapping protection method, a system, and a computer storage medium, so as to implement a random response to the randomness of the network fault of the device.
  • the embodiment of the present invention provides a virtual network mapping protection method under the framework, where the method includes:
  • the application layer edits and defines the sub-network model according to the network editing request
  • the network virtual layer constructs the sub-network model, and integrates the sub-network model into a global network view;
  • All the sub-network models included in the global network view of the controller layer are mapped to the working device network and the protection device network respectively.
  • the working mapping relationship of the sub-network is switched from the working device network to the protection device network.
  • the method further includes:
  • the application layer sets a protection policy and a mapping optimization solution target for the sub-network model, and the network virtual layer separately records protection policies and mapping solution targets of all sub-network models included in the global network view, and all sub-networks are
  • the protection policy and mapping solution target of the model and the global network view are sent to the controller layer;
  • the controller layer maps all sub-network models into a working device network and a protection device network according to a protection strategy of all sub-network models and a mapping optimization solution target.
  • the protection strategy of the sub-network model includes any one of the following:
  • the physical device nodes and links of the working device network and the protection device network are not allowed to be shared; the working device network and the protection device network only allow the physical device nodes to share;
  • the work device network and the protection device network allow link sharing.
  • mapping optimization solution target comprises at least one of the following:
  • the resource cost is the smallest, the number of mappings is the largest, the load is balanced, and the revenue is the largest.
  • the method further includes:
  • the controller layer After receiving the message that all the working device network faults are recovered, the controller layer restores the working mapping relationship of the corresponding sub-network to the working device network.
  • the embodiment of the present invention further provides a virtual network mapping protection system, where the system includes: an application layer module configured to edit and define a sub-network model according to a network editing request; and a network virtual layer module configured to construct the application layer The sub-network model edited and defined by the module, the sub-network model is integrated into a global network view, and the global network view is sent to the controller layer module;
  • the controller layer module is configured to map all the sub-network models included in the global network view sent by the network virtual layer module to a working device network and a protection device network, respectively, when the working device network fails, When the specified condition is met and the protection device network is faultless, the working mapping relationship of the corresponding sub-network is switched from the working device network to the protection device network.
  • the application layer module is further configured to: after editing and defining a sub-network model according to a network editing request of each user, setting a protection policy and a mapping optimization solution target to the sub-network model, and the protection policy and mapping The optimization solution target is sent to the network virtual layer module;
  • the network virtual layer module is further configured to separately record protection policies and mapping solution targets of all sub-network models included in the global network view, and to protect a protection policy and a mapping solution target of all sub-network models from the global network view. Sended to the controller layer module;
  • the controller layer module is configured to map all the sub-network models into a working device network and a protection device network according to a protection policy and a mapping optimization solution target of all the subnet models sent by the network virtual layer module.
  • the protection policy of each network model set by the application layer module includes any one of the following:
  • the physical device nodes and links of the working device network and the protection device network are not allowed to be shared; the working device network and the protection device network only allow the physical device nodes to share;
  • the work device network and the protection device network allow link sharing.
  • mapping optimization solution target of the sub-network model set by the application layer module comprises at least one of the following:
  • the resource cost is the smallest, the number of mappings is the largest, the load is balanced, and the revenue is the largest.
  • the controller layer module is further configured to: after the working mapping relationship of the corresponding sub-network is switched from the working device network to the protection device network, after receiving the message indicating that the working device network failure is completely restored, the corresponding sub- The working mapping relationship of the network is restored to the working device network.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the virtual network mapping protection method according to the embodiment of the invention.
  • the virtual network mapping protection method, system and computer storage medium provided by the embodiments of the present invention edit and define a sub-network model according to a network editing request by an application layer; the network virtual layer constructs the sub-network model, and integrates the sub-network model a global network view; the controller layer maps all sub-network models included in the global network view to a working device network and protection.
  • the device network when the working device network fails, meets the specified condition, and the protection device network is not faulty, the working mapping relationship of the corresponding sub-network is switched from the working device network to the protection device network, thus implementing the global network Protection between the view and the physical layer network mapping relationship to achieve rapid response to the randomness of the device network failure, and to achieve the protection of the mapping optimization target of the global network view and the physical layer network mapping relationship.
  • FIG. 1 is a schematic diagram of an SDN architecture in the prior art
  • FIG. 2 is a flow chart of a virtual network mapping protection method in an SDN architecture according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a mapping relationship between a subnet model and a physical layer device network according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a working device network and a protection device network only allowing nodes to share according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a working device network and a protection device network allowing link sharing according to an embodiment of the present invention
  • FIG. 6 is a flow chart of a method for switching a mapping relationship between a subnet model and a device network according to an embodiment of the present invention
  • FIG. 7 is a flowchart of a method for restoring a virtual network map after a fault recovery of a working network according to an embodiment of the present invention
  • FIG. 8 is a schematic structural diagram of a virtual network mapping protection system according to an embodiment of the present invention. detailed description
  • the embodiment of the present invention provides a virtual network mapping protection method based on the SDN architecture, which is intended to protect the mapping relationship between the global network view and the physical layer network by using the protection method, so as to implement a fast response device network.
  • FIG. 2 is a flowchart of a method for protecting a virtual network mapping according to an embodiment of the present invention. As shown in FIG. 2, the method in this embodiment includes:
  • Step 101 The application layer edits and defines the sub-network model according to the network editing request.
  • the method further includes:
  • the application layer sets a protection policy and a mapping optimization solution target for the sub-network model. Specifically, the application layer receives a network editing request sent by each user, edits and defines a subnet model according to the needs of each user, and can set a protection policy and a mapping optimization solution target for the defined sub-network model.
  • Step 102 The network virtual layer constructs the sub-network model, and integrates the sub-network model into a global network view.
  • the network virtual layer separately records protection policies and mapping solution targets of all sub-network models included in the global network view; wherein the network virtual layer records protection policies and mapping solution targets of all sub-network models To the role of the backup, and the network virtual layer passes the global network view (including the protection policy and mapping solution target of all sub-network models) information to the controller layer.
  • Step 103 The controller layer maps all the sub-network models included in the global network view to the working device network and the protection device network respectively, when the working device network fails, meets the specified condition, and the protection device network is not faulty.
  • the controller layer maps all the sub-network models into a working device network and a protection device network according to the protection policy of all sub-network models and the mapping optimization solution target.
  • the controller layer is responsible for mapping the global network view to the physical layer network device.
  • all sub-network models included in the global network view and protection policies of all subnet models may be used.
  • mapping optimization solution target respectively construct corresponding corresponding subnet mapping protection mechanism.
  • the same subnet model is respectively mapped into a working device network mapping relationship and a protection device network mapping relationship, and the functions of the two mapping relationships are completely the same;
  • mapping between the subnet and the working device network is working, and the mapping between the subnet and the protection device network is in a non-working state.
  • the controller layer is responsible for switching the mapping relationship between the subnet and the protection device network to Working status, the mapping relationship between the subnet and the working device network becomes non-working.
  • the protection policies of the mapping relationship between the subnet model and the physical device network may be classified into the following types:
  • FIG. 3 is a schematic diagram of a mapping relationship between a subnet model and a physical layer device network according to an embodiment of the present invention. As shown in FIG. 3, the network of the working device network domain protection device does not overlap and has no influence on each other;
  • FIG. 4 is a schematic diagram of the working device network and the protection device network only allowing nodes to share according to an embodiment of the present invention, as shown in FIG.
  • Work equipment network and protection equipment network are only allowed to be shared Sharing node C sharing, preferably, allowing at least two nodes to share;
  • FIG. 5 is a working device according to an embodiment of the present invention A schematic diagram of a network and a protection device network allowing link sharing. As shown in FIG. 5, the working device network and the protection device network allow the shared node C and the shared node D to share, and allow the shared link H to share;
  • the mapping optimization solution target may include at least one of the following:
  • the resource cost is the smallest, the number of mappings is the largest, the load is balanced, and the revenue is the largest.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the virtual network mapping protection method according to the embodiment of the invention.
  • FIG. 6 is a flowchart of a method for switching a mapping between a subnet model and a device network according to an embodiment of the present invention. As shown in FIG. 6, the method for switching a mapping between a subnet model and a device network in this embodiment may include the following steps:
  • Step 201 The working device network is faulty and reported to the controller layer.
  • the working device network failure may include: a node failure or a link failure inside the working device network.
  • Step 202 Determine whether the working device network fault is restored within the time threshold set on the controller layer. When the result of the determination is no, step 203 is performed; when the result of the determination is yes, the current operation flow is ended.
  • Step 203 Determine whether the protection device network has no fault. When the result of the determination is yes, step 204 is performed; when the result of the determination is no, the current operation flow is ended.
  • Step 204 The controller layer switches the mapping relationship to the protection device network.
  • the user service runs on the working device network, the user service is also switched to the protection device network.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the virtual network mapping protection method according to the embodiment of the invention.
  • FIG. 7 is a flowchart of a method for restoring a virtual network mapping after a fault recovery of a working network according to an embodiment of the present invention. As shown in FIG. 7, the method may include the following steps:
  • Step 301 The working device network failure is completely restored, and the working device network status is reported to the controller layer.
  • the working network state in which the working network state is normal and normal is reported to the controller layer.
  • Step 302 The controller layer restores the mapping relationship from the protection device network to the working device network.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the virtual network mapping protection method according to the embodiment of the invention.
  • the user service is also switched back to the working device network.
  • FIG. 8 is a schematic structural diagram of a virtual network mapping protection system according to an embodiment of the present invention. As shown in FIG. 8, the system in this embodiment includes:
  • the application layer module 81 is configured to edit and define a sub-network model according to the network editing request.
  • the network virtual layer module 82 is configured to construct the sub-network model edited and defined by the application layer module 81, and the sub-network model is configured. Integrating a global network view, and transmitting the global network view to a controller layer module;
  • controller layer module 83 configured to send the global network sent by the network virtual layer module 82 All the sub-network models included in the network view are mapped to the working device network and the protection device network respectively. When the working device network fails, meets the specified conditions, and the protection device network is not faulty, the working mapping relationship of the corresponding sub-network is Switch from the working device network to the protection device network.
  • the application layer module 81 is further configured to: after editing and defining the sub-network model according to the network editing request, setting a protection policy and a mapping optimization solution target to the sub-network model, where the protection policy is And the mapping optimization solution target is sent to the network virtual layer module 82;
  • the network virtual layer module 82 is further configured to separately record a protection policy and a mapping solution target of all the sub-network models included in the global network view, and a protection policy and a mapping solution target of all the sub-network models and the global network.
  • the view is sent to the controller layer module 83.
  • the controller layer module 83 is configured to map all the sub-network models according to the protection policy and the mapping optimization solution target of all the sub-network models sent by the network virtual layer module 82. Become a working device network and a protection device network.
  • the protection policy of the sub-network model set by the application layer module 81 may include any one of the following:
  • the physical device nodes and links of the working device network and the protection device network are not allowed to be shared; the working device network and the protection device network only allow the physical device nodes to share;
  • the work device network and the protection device network allow link sharing.
  • the mapping optimization solution target of each sub-network model set by the application layer module 81 includes at least one of the following:
  • the resource cost is the smallest, the number of mappings is the largest, the load is balanced, and the revenue is the largest.
  • the controller layer module 83 is further configured to: after the working mapping relationship of the corresponding sub-network is switched from the working device network to the protection device network, after receiving the message indicating that the working device network failure is completely restored, Restore the working mapping relationship of the corresponding sub-network to The working device network.
  • the virtual network mapping protection system may be implemented by any node device in the SDN network in an actual application; the application layer module 81, the network virtual layer module 82, and the controller layer module 83 in the virtual network mapping protection system. In practical applications, it can be implemented by a central processing unit (CPU), a digital signal processor (DSP, Digital Singnal Processor), or a Field-Programmable Gate Array (FPGA).
  • CPU central processing unit
  • DSP digital signal processor
  • FPGA Field-Programmable Gate Array
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • the embodiment of the present invention edits and defines a sub-network model according to a network editing request by an application layer; the network virtual layer constructs the sub-network model, and integrates the sub-network model into a global network view; the controller layer uses the global network view All the sub-network models included in the work are mapped to the working device network and the protection device network respectively.
  • the working device network fails, meets the specified conditions, and the protection device network is not faulty, the working mapping relationship of the corresponding sub-network is from the work.
  • the device network is switched to protect the device network. In this way, the mapping between the global network view and the physical layer network is protected, so as to realize the randomness of the network response of the fast response device, and the mapping between the global network view and the physical layer network is realized. Optimize the protection of the target.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Computer Security & Cryptography (AREA)
PCT/CN2014/080416 2013-06-21 2014-06-20 虚拟网络映射保护方法、系统及计算机存储介质 WO2014202026A1 (zh)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES14813827.4T ES2665433T3 (es) 2013-06-21 2014-06-20 Procedimiento y sistema para protección de correspondencia de red virtual y medio de almacenamiento en ordenador
JP2016520265A JP6117996B2 (ja) 2013-06-21 2014-06-20 仮想ネットワークマッピング保護方法、システムおよびコンピュータ記憶媒体
EP14813827.4A EP3013005B1 (en) 2013-06-21 2014-06-20 Method and system for virtual network mapping protection and computer storage medium
RU2015155788A RU2637419C2 (ru) 2013-06-21 2014-06-20 Способ и система для защиты отображения виртуальной сети, а также компьютерный носитель данных
US14/899,062 US10411949B2 (en) 2013-06-21 2014-06-20 Method and system for virtual network mapping protection and computer storage medium
KR1020167000382A KR101859302B1 (ko) 2013-06-21 2014-06-20 가상 네트워크 매핑 보호 방법, 시스템 및 컴퓨터 저장 매체

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310249773.9A CN104243196B (zh) 2013-06-21 2013-06-21 一种sdn架构下的虚拟网络映射保护方法及系统
CN201310249773.9 2013-06-21

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US (1) US10411949B2 (ja)
EP (1) EP3013005B1 (ja)
JP (1) JP6117996B2 (ja)
KR (1) KR101859302B1 (ja)
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ES (1) ES2665433T3 (ja)
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CN105812161A (zh) * 2014-12-31 2016-07-27 中国电信股份有限公司 一种控制器故障备份方法和系统
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CN104993941B (zh) * 2015-05-14 2018-07-03 西安电子科技大学 一种基于Openflow网络高容错性虚拟网络映射算法
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CN106790318B (zh) * 2015-11-19 2020-12-11 上海诺基亚贝尔股份有限公司 一种软件定义网络中网络功能抽象方法及其装置
CN112737866B (zh) 2016-10-31 2022-12-13 华为技术有限公司 网络切片的管理方法、管理单元及系统
WO2018094667A1 (zh) 2016-11-24 2018-05-31 华为技术有限公司 一种管理方法、管理单元及系统
CN108282354B (zh) * 2017-11-10 2021-03-23 西安电子科技大学 基于sdn的共享车辆自组织网络架构方法
CN108199928B (zh) * 2018-02-01 2023-09-26 国网湖北省电力公司信息通信公司 一种多维电力通信网流量预测方法及系统
TWI662853B (zh) 2018-04-20 2019-06-11 國立交通大學 通訊系統及通訊傳輸方法
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